File Size Converter
Convert between bytes, KB, MB, GB, TB with binary (1024) and decimal (1000) modes
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Used by OSes (Windows, Linux, macOS for RAM)
Quick examples:
Conversion Table — Binary (÷1024)
B
Bytes (B)
1,048,576
KiB
Kibibytes (KiB)
1,024
MiB
Mebibytes (MiB)
1
GiB
Gibibytes (GiB)
9.7656e-4
TiB
Tebibytes (TiB)
9.5367e-7
PiB
Pebibytes (PiB)
9.3132e-10
Binary vs Decimal — Why the Confusion?
Binary (1 KiB = 1,024 bytes)
Used by operating systems for RAM and file sizes. Windows shows a 1 GB hard drive as ~931 GiB.
Decimal (1 KB = 1,000 bytes)
Used by storage manufacturers. A "500 GB" drive contains exactly 500,000,000,000 bytes.